A
Andrew Zwickl
Guest
I have a 95 Chevy S-10 Blazer with 4WD. When I initially come to a
stop the pedal is nice and firm but after I'm stopped in traffic, the
brake pedal will slowly sink to the floor. I checked for external
leaks and found none. The master cylinder has been replaced 4 times,
the last time with a new (not reman) unit. The BPMV for the anti-lock
system has also been replaced. But the problem remains. Are
combination valves known to leak internally? Is there air in the
system or BPMV? Can the BPMV be bleed without a scan tool? Bleeding
the system manually does not show air and does not correct the
problem. Any other ideas? Thanks in advance!
stop the pedal is nice and firm but after I'm stopped in traffic, the
brake pedal will slowly sink to the floor. I checked for external
leaks and found none. The master cylinder has been replaced 4 times,
the last time with a new (not reman) unit. The BPMV for the anti-lock
system has also been replaced. But the problem remains. Are
combination valves known to leak internally? Is there air in the
system or BPMV? Can the BPMV be bleed without a scan tool? Bleeding
the system manually does not show air and does not correct the
problem. Any other ideas? Thanks in advance!
